Files
android_kernel_fxtec_sm6115/include/linux
Dietmar Eggemann c4ed8aa44d ANDROID: implement max frequency capping
Implements the Max Frequency Capping Engine (MFCE) getter function
topology_get_max_freq_scale() to provide the scheduler with a
maximum frequency scaling correction factor for more accurate cpu
capacity handling by being able to deal with max frequency capping.

This scaling factor describes the influence of running a cpu with a
current maximum frequency (policy) lower than the maximum possible
frequency (cpuinfo).

The factor is:

  policy_max_freq(cpu) << SCHED_CAPACITY_SHIFT / cpuinfo_max_freq(cpu)

It also implements the MFCE setter function arch_set_max_freq_scale()
which is called from cpufreq_set_policy().

Signed-off-by: Ionela Voinescu <ionela.voinescu@arm.com>
Signed-off-by: Dietmar Eggemann <dietmar.eggemann@arm.com>
[Trivial cherry-pick issue in cpufreq.c]
Signed-off-by: Quentin Perret <quentin.perret@arm.com>
Change-Id: I59e52861ee260755ab0518fe1f7183a2e4e3d0fc
2018-10-26 12:25:24 +01:00
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